MARNI Fussbett Calf Hair Slippers Marni's 'Fussbett' slippers are designed for confident dressers who want to round off a bold outfit or simply add a statement to something more pared back. They've been made in Italy from black calf hair and have comfortable contoured footbeds. Slight crease on top where foot would bend. No other flaws noted. Light wear on bottoms. Marni size 46 is US 13.